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Two circular loop of radii 10cm and 40cm carries current of 1A and 2A respectively. Find the ratio of magnitude of magnetic field at their centres
Asked by ayushmishradbb | 05 Nov, 2019, 17:49: PM
answered-by-expert Expert Answer
M a g n e t i c space f i e l d space a t space t h e space c e n t r e space o f space t h e space l o o p equals fraction numerator mu subscript 0 I over denominator 2 R end fraction B subscript 1 over B subscript 2 equals fraction numerator fraction numerator mu subscript 0 I subscript 1 over denominator 2 R subscript 1 end fraction over denominator fraction numerator mu subscript 0 I subscript 2 over denominator 2 R subscript 2 end fraction end fraction B subscript 1 over B subscript 2 equals I subscript 1 over I subscript 2 cross times R subscript 2 over R subscript 1 B subscript 1 over B subscript 2 equals 1 half cross times fraction numerator 40 cross times 10 to the power of negative 2 end exponent over denominator 10 cross times 10 to the power of negative 2 end exponent end fraction B subscript 1 over B subscript 2 equals 2 over 1
Answered by Utkarsh Lokhande | 05 Nov, 2019, 18:53: PM

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